disazoadj.

Brit.

/dɪsˈeɪzəʊ/,

/dɪsˈazəʊ/, U.S.

/ˌdɪsˈeɪzoʊ/,

/ˌdɪsˈæzoʊ/

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek δίς , azo- comb. form.

Etymology: < ancient Greek δίς twice (see di- comb. form) + azo- comb. form. Compare monoazo adj., trisazo adj.Compare German Disazo (a1883 or earlier).

Chemistry.

attributive. Designating compounds, esp. synthetic dyes, having two azo groups (—N=N—) in the molecule. Cf. monoazo adj.

ΚΠ

1882 O. Wallach in Jrnl. Soc. Chem. Industry Mar. 102/2 In general, compounds containing several azo residues may be distinguished from the ordinary azo compounds, as disazo, trisazo, etc., compounds.

1913 A. G. Bloxam & S. J. Lewis Bloxam's Chem. (ed. 10) 719 Disazo-dyestuffs..contain the ·N:N· group twice, and are of three kinds.

1966 I. T. Millar & H. D. Springall Sidgwick's Org. Chem. Nitrogen (ed. 3) xvii. 588 The azo dyes form the largest class of organic dyes... Monoazo, disazo, trisazo, and polyazo dyes are distinguished.

2014 Jrnl. Saudi Chem. Soc. 18 985 (title) Synthesis and dyeing properties of new disazo disperse dyes for polyester and nylon fabrics.

This entry has been updated (OED Third Edition, September 2017; most recently modified version published online March 2022).

单词	disazo
释义	disazoadj. Brit. /dɪsˈeɪzəʊ/, /dɪsˈazəʊ/, U.S. /ˌdɪsˈeɪzoʊ/, /ˌdɪsˈæzoʊ/ Origin: A borrowing from Greek, combined with an English element. Etymons: Greek δίς , azo- comb. form. Etymology: < ancient Greek δίς twice (see di- comb. form) + azo- comb. form. Compare monoazo adj., trisazo adj.Compare German Disazo (a1883 or earlier). Chemistry. attributive. Designating compounds, esp. synthetic dyes, having two azo groups (—N=N—) in the molecule. Cf. monoazo adj. ΚΠ 1882 O. Wallach in Jrnl. Soc. Chem. Industry Mar. 102/2 In general, compounds containing several azo residues may be distinguished from the ordinary azo compounds, as disazo, trisazo, etc., compounds. 1913 A. G. Bloxam & S. J. Lewis Bloxam's Chem. (ed. 10) 719 Disazo-dyestuffs..contain the ·N:N· group twice, and are of three kinds. 1966 I. T. Millar & H. D. Springall Sidgwick's Org. Chem. Nitrogen (ed. 3) xvii. 588 The azo dyes form the largest class of organic dyes... Monoazo, disazo, trisazo, and polyazo dyes are distinguished. 2014 Jrnl. Saudi Chem. Soc. 18 985 (title) Synthesis and dyeing properties of new disazo disperse dyes for polyester and nylon fabrics. This entry has been updated (OED Third Edition, September 2017; most recently modified version published online March 2022). < adj.1882
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